Ramses Ramirez

Affiliate Research Scientist
Tokyo, Japan


Ph.D. Pennsylvania State University, Degree: Geosciences and Astrobiology
M.S. Arizona State University, Degree: Planetary Geology
B.S. Georgia Institute of Technology, Degree: Aerospace Engineering

Ramses is a planetary scientist and astrobiologist that studies potentially habitable planets both within and outside of our solar system. He develops atmospheric and geologic models to assess the physical processes that make planets habitable, which includes modeling climates, atmospheric escape, and atmospheric-magma ocean interactions. His recent work has included improving definitions of the habitable zone and unraveling the mysteries of the early Martian climate.

Ramses has a Ph.D. in Geosciences and Astrobiology under Professor James F. Kasting, with whom he developed an improved climate model that was used to redefine the classical CO2-H2O habitable zone limits and demonstrate how a CO2-H2 greenhouse could have warmed early Mars. He further developed his ideas as a research associate with Professor Lisa Kaltenegger at the Carl Sagan Institute (Cornell University). He continues his work at the Earth-Life Science Institute in Tokyo.

Ramses joined SSI in 2018.